He is one of Ayanami's subordinates holding the position as Major (which is sometimes translated as Lieutenant Commander) of the Black Hawks and often acts as Ayanami's bodyguard. He is a Warsfeil.

Hyuuga is recognised by his tall stature, distinctive black sunglasses, eating of a candy apple (or lolly pop), and the light smile he almost always wears on his face. He is always joking, being silly and not acting seriously. Despite this, he is very skilled with the Katana (a Japanese sword) and almost uses it to perfection, being the one who killed Weldeschtein Krom Raggs's bodyguards during the Raggs War.

As of Kapitel 89, he seems to have died when he fought against Katsuragi, who was confirmed to be the missing Ghost Landkarte. However, Kapitel 96 reveals that he is alive but still recovering.

Hyuuga's first appearance was in the second pilot chapter, Begleiter. Hyuuga's physical appearance has not changed much. His face was more narrow and his hair was much shorter than it is in the finalised series, although this could simply be because of the art style evolving as opposed to a change in his design.

However, his appearance was tweaked slightly. He appears to have been made shorter, as early Hyuuga was a full head taller than Ayanami,[4] yet the current Hyuuga is only two inches taller. Hyuuga also carried only one sword at his belt, instead of the two katana he does in the finalised series.

Hyuuga does not have a major role in the chapter, and appears alongside characters Ayanami and Yukinami. When Yukinami feels he isn't a good enough Begleiter for Ayanami, Hyuuga tells him about Yukikaze's death and encourages Yukinami to not give up. In a meeting, Hyuuga later confronts Ayanami about his inability to forget Yukikaze, which has made him (Ayanami) reluctant to accept Yukinami. When Prisoner D-431 attacks Ayanami, Hyuuga jumps in front of his superior and cuts down the criminal.

It seems that Hyuuga likes wearing sunglasses and the reason is unknown. But he keeps multiple pairs in his pocket in case one pair gets damaged during battle (manga chapter 65).

While Hyuuga usually calls Ayanami 'Aya-tan', he did once address Ayanami respectfully in a drama CD track, calling him 'Ayanami-dono'. This is the only time in the series that Hyuuga doesn't call Ayanami 'Aya-tan'.

His appearance has not changed at all since the Raggs War, and some fans think he looks young for his age.

Some fans have speculated that Hyuuga holds a grudge against Yukikaze (e.g. because his death damaged Ayanami so much emotionally, or because Yukikaze was loved by Ayanami). In Japan and China, there are also speculations that Hyuuga and Yukikaze are related by blood, as their physical appearances are similar.

In Manga Chapter 26, Ayanami remembers a man that says to him: "Watashi no ou wa anata dake desu, Ayanami-sama". Some fans at the time believed this man was Hyuuga, but it was later revealed to be Yukikaze.

Manga chapter 65 shows Hyuuga fighting Weldeschtein's bodyguards in a wooded area. Hyuuga uses a very powerful Zaiphon which destroys a large portion of the woods. In the previous chapter, Fea Kreuz comments that the Barsburg soldiers, including Hyuuga, were following them. When Ogi's fleet was destroyed, they were shown to be in the woods. They could have been killed by Hyuuga's Zaiphon.

In the manga, Hyuuga's character design has changed a lot and strangely, he looks somewhat like Weldeschtein Krom Raggs.

Hyuuga is the only Warsfeil in the series known to have lost his powers.

Hyuuga has made at least one Ayanami doll,[16] and Konatsu said that Ayanami would be angry with him if he knew that.

Hyuuga has tried to cheer Ayanami up (but ends up offending him) using various ways, e.g. painting Ayanami's bedroom in different colors according to the seasons, baking a big cake which has the form of Ayanami.[17]

↑Hyuuga says, "さきに行ってるよ しにがみに戻ったら あそびにきてね". In the original language (Japanese), the object of "play" is not mentioned. So, it is uncertain with whom Hyuuga want Ayanami, after he has become Shinigami again, to play.

↑ "お前が愛するものすべてが、オレの正義だ." The quote is on a cover of the manga. [1] He used informal saying, お前 (Omae) and オレ (Ore) so it is possibly Hyuuga saying this.

↑Kapitel 8 page 6, Hyuuga wipes his face with this handkerchief then puts it back in his pocket in the next panel.